From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271040AbTGPSNw (ORCPT ); Wed, 16 Jul 2003 14:13:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271034AbTGPSMF (ORCPT ); Wed, 16 Jul 2003 14:12:05 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:30411 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S271033AbTGPSJ4 (ORCPT ); Wed, 16 Jul 2003 14:09:56 -0400 Subject: Re: PS2 mouse going nuts during cdparanoia session. From: Alan Cox To: Jens Axboe Cc: Dave Jones , vojtech@suse.cz, Linux Kernel Mailing List In-Reply-To: <20030716173122.GQ833@suse.de> References: <20030716165701.GA21896@suse.de> <20030716170352.GJ833@suse.de> <1058375425.6600.42.camel@dhcp22.swansea.linux.org.uk> <20030716171607.GM833@suse.de> <20030716172331.GD21896@suse.de> <20030716172531.GP833@suse.de> <20030716172823.GE21896@suse.de> <20030716173122.GQ833@suse.de> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1058379733.6633.51.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 16 Jul 2003 19:22:14 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mer, 2003-07-16 at 18:31, Jens Axboe wrote: > Doesn't look really bogged down by interrupt load, still half idle. So > that looks like a PS2 bug. Unless the irq latencies are really bad, I > guess that could be it too. Vojtech knows a hell of a lot more about > that than me :) PS/2 has some horrble timing rules but they are the wrong way around for this bug so I'm somewhat baffled - you must do 1mS sized delays between ps/2 reads even on some current chipsets but there isnt really an upper limit